Plate micro-tracking control can reduce or cancel the temperature deviation.
采用钢板微跟踪控制可以减小或消除钢板纵向的温度不均。
Finally, the paper introduced effective control methods of common drill string vibration and deviation problem.
最后对常见的钻柱振动和井斜问题介绍了有效的控制方法。
Finally, considers the applications of compound extrema-deviation to quality control.
最后简介复合极差控制图在质量管理中的应用。
But the research on borehole deviation control is very few.
但在井斜控制方面的研究还很欠缺。
Also it is difficult to control hole deviation.
因此，钻进效率低，回次进尺短，孔斜不易控制。
Also it is difficult to control hole deviation.
因此，钻进效率低，回次进尺短，孔斜不易控制。
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